Cu XLPE PVC Frls Cable 400mm2 300mm2 240mm2 Power Cable

The specification parameters of Cu XLPE PVC Frls Cable 400mm², 300mm², 240mm² Power Cables are key indicators of their performance and application. Each parameter has undergone precise calculation and strict standardization to ensure stable and reliable operation in high-voltage power transmission and distribution systems.

In terms of conductors, the high-purity electrolytic Copper Conductor represented by "Cu" is the core transmission component of the cable. The three different conductor cross-sectional areas of 400mm², 300mm², and 240mm² directly determine the current-carrying capacity of the cable. Under rated operating conditions, the 400mm² conductor can have a current-carrying capacity of more than 300A, which can meet the high-voltage and large-capacity power transmission needs of large industrial plants, Power Stations, and other places. For example, in large power plants, when transmitting the huge electric energy generated by generators to transformers, the 400mm² cable can efficiently carry strong currents. The current-carrying capacity of the 300mm² conductor is about 250A - 300A, which is suitable for scenarios such as medium-sized substations and urban power grid trunk lines. Like when the substation in the city center transmits power to surrounding areas, the 300mm² cable can stably complete power distribution. The current-carrying capacity of the 240mm² conductor is between 200A - 250A, which is often used in power distribution trunks of high-rise buildings, main cables of large commercial complexes, etc., to provide continuous power for many electrical equipment in super high-rise buildings.

The purity of the conductor is as high as 99.9% or more, and the extremely low resistivity ensures minimal energy loss during current transmission. At the same time, the conductor is made by stranding multiple strands of Copper Wires. The diameter of each strand of copper wire is precisely controlled within a certain range, and the stranding pitch is optimally designed. This not only enhances the Flexibility of the conductor, facilitating bending and laying in complex environments, but also improves the fatigue resistance of the conductor, extending the service life of the cable.

The insulation layer is made of XLPE (cross-linked polyethylene) material, and its thickness is determined according to the rated voltage level of the cable. For cables with a 10kV voltage level, the thickness of the insulation layer is usually between 4mm - 5mm; for cables with a 35kV voltage level, the thickness of the insulation layer is about 8mm - 10mm. After cross-linking treatment, the XLPE insulation layer has excellent temperature resistance. The long-term working temperature can reach 90℃, and in case of a short circuit, it can withstand a high temperature of 130℃. This enables the cable to remain in normal operation for a certain period of time in case of sudden faults, buying time for fault handling. In addition, the XLPE insulation layer has a small dielectric loss tangent value and a large insulation resistance, ensuring good insulation performance, which can effectively resist the impact of high voltage and prevent breakdown.

The thickness of the "PVC Frls" sheath also varies depending on the cable specification, generally between 2mm - 3mm. This sheath not only has flame-retardant and low-smoke properties, but its oxygen index is usually above 30, meeting relevant flame-retardant standards. When burning, it produces low smoke density, high light transmittance, and releases very little toxic gas, which can create favorable conditions for personnel evacuation and rescue. At the same time, the PVC Frls sheath has high mechanical strength, and its tensile strength and elongation at break meet strict standards, which can resist external friction, extrusion, and collision, protecting the internal insulation layer and conductor from damage.

The overall outer diameter of the cable is also clearly specified. The 400mm² cable has a larger outer diameter, usually between 30mm - 40mm; the outer diameter of the 300mm² cable is about 25mm - 35mm; the outer diameter of the 240mm² cable is between 20mm - 30mm. The weight of cables of different specifications also differs. The 400mm² cable weighs about 10kg - 15kg per meter, the 300mm² cable weighs 8kg - 12kg per meter, and the 240mm² cable weighs about 6kg - 10kg per meter. These parameters provide important references for the transportation, laying, and installation of the cable.

Cu XLPE PVC Frls Cable 400mm², 300mm², 240mm² power cables, with their unique performance advantages, have distinctive uses in multiple fields, meeting the high requirements for power transmission in different scenarios.

In the industrial field, the 400mm² cable plays an irreplaceable role. In large power plants, it serves as the connecting cable between generators and transformers, undertaking the key task of transmitting huge electrical energy from generators to transformers for voltage boosting. Its large current-carrying capacity and high stability ensure efficient and safe power transmission. In the production process of large chemical plants, a large number of high-power equipment, such as reactors and large compressors, are needed. The 400mm² cable can provide stable high-voltage power for these equipment, ensuring continuous production. In addition, in iron and steel plants, aluminum plants, etc. in the metallurgical industry, the high-temperature and high-dust environment has extremely high requirements for cable performance. The XLPE insulation layer and PVC Frls sheath of this cable can adapt to such harsh environments, ensuring uninterrupted power supply.

The 300mm² cable is widely used in municipal engineering. The urban underground power grid is the lifeline of urban power supply. As the trunk line of the underground power grid, the 300mm² cable is buried in underground pipes or directly in the soil. Its good corrosion resistance and mechanical strength can resist soil pressure, groundwater erosion, and possible damage from underground construction, ensuring stable power supply in all areas of the city. The highway lighting system needs to work in the outdoor environment for a long time, enduring the test of natural factors such as wind, sun, rain, etc. The 300mm² cable can provide reliable power for lighting equipment, ensuring safe driving at night. In addition, in the construction of large bridges, the 300mm² cable is used for power supply of lighting, monitoring, and other equipment on the bridge, and its vibration resistance and weather resistance meet the special usage requirements of the bridge.

The 240mm² cable is mostly used in high-rise buildings and large commercial complexes. The power distribution shaft of super high-rise buildings has limited space and is densely populated. The flexibility of the 240mm² cable allows it to be laid smoothly in narrow spaces. At the same time, its flame-retardant and low-smoke properties can reduce the generation of smoke and toxic gases in case of fire, buying valuable time for personnel evacuation. There are many electrical equipment in large shopping malls, including air conditioning systems, elevators, lighting, electrical equipment in various shops, etc. As the main cable, the 240mm² cable can reasonably distribute power to ensure the normal operation of various equipment. In places such as hospitals, the requirements for power reliability and safety are extremely high. The 240mm² cable can provide stable power for key areas such as operating rooms and intensive care units, ensuring the smooth progress of medical work.

In addition, in some special places, such as data centers, a large number of servers and network equipment need continuous and stable power supply, and the 240mm² cable can meet their high-power and high-reliability needs. In the subway system, the 300mm² cable is used for traction power supply of subway lines and power distribution systems of stations, and its vibration resistance and moisture resistance adapt to the operating environment of the subway.

In terms of material selection and style design, Cu XLPE PVC Frls Cable 400mm², 300mm², 240mm² power cables are fully combined with the performance requirements and usage scenarios of the product, ensuring the high quality and practicality of the cable.

In terms of materials, the conductor is made of high-purity electrolytic copper, which has excellent conductivity with a conductivity of more than 100% IACS (International Annealed Copper Standard). It can transmit current efficiently and reduce energy loss. The high-purity electrolytic copper has undergone strict refining processes to remove impurities and oxides, ensuring stable conductivity of the conductor. At the same time, copper has good ductility and plasticity, allowing the conductor to be drawn into fine copper wires, and forming conductors with different cross-sectional areas through stranding processes to meet different current-carrying capacity requirements.

The insulation layer uses XLPE (cross-linked polyethylene) material, which is a specially treated polymer material. During the cross-linking process, the linear polyethylene molecular chains form a three-dimensional network structure through chemical or physical methods, which greatly improves the heat resistance, mechanical strength, and chemical stability of the material. Compared with ordinary polyethylene, XLPE material is not easy to soften and flow at high temperatures, and can maintain stable insulation performance; it has high impact strength, which can resist external mechanical damage; it has good corrosion resistance to acids, alkalis, oils, and other chemical substances, extending the service life of the cable.

The PVC Frls sheath is made of flame-retardant and low-smoke polyvinyl chloride material, which is added with flame retardants, smoke suppressants, and other additives on the basis of polyvinyl chloride, making it have excellent flame-retardant and low-smoke properties. Flame retardants can inhibit the combustion reaction of the material and delay the spread of fire; smoke suppressants can reduce the generation of smoke during combustion and reduce the harm of smoke to humans and equipment. At the same time, PVC material itself has good flexibility and processing performance, allowing the sheath to tightly wrap around the insulation layer, forming effective protection.

In terms of style design, the cable has an overall circular structure. This structure makes the cable 受力 evenly during laying, whether it is laid through pipes or directly buried, which can reduce friction with pipes or soil and reduce the risk of damage. The circular structure also facilitates the coiling and storage of the cable, saving storage space.

The color design of the cable has certain identification. Usually, the insulation layer is black or gray, and the sheath is black. Black has good UV resistance, suitable for outdoor use, and can reduce the aging effect of sunlight on the cable. On the surface of the cable, clear marks are printed, including product model, specification, rated voltage, manufacturer, production date, etc. These marks are printed with wear-resistant ink to ensure that they are not easy to fall off during long-term use, facilitating users to identify and trace the product.

The differences in style between cables of different specifications are mainly reflected in outer diameter and weight. The 400mm² cable has the largest outer diameter and weight due to its large cross-sectional area; the 300mm² cable is next; the 240mm² cable is relatively smaller. However, their structural levels are consistent, all consisting of conductors, insulation layers, sheaths, etc., ensuring product consistency and interchangeability.

The production process of Cu XLPE PVC Frls Cable 400mm², 300mm², 240mm² power cables is complex and sophisticated, with each link strictly controlled to ensure that the quality and performance of the product meet the design standards.

Conductor manufacturing is the first step in production. High-purity electrolytic copper rods are used as raw materials, and the copper rods are drawn into copper wires of the required diameter through a wire drawing machine. During the wire drawing process, it is necessary to accurately control the wire drawing speed, die size, and cooling system to ensure that the diameter of the copper wire is uniform, the surface is smooth, and there are no defects such as cracks and scratches. The drawn copper wire needs to be annealed, heating the copper wire to a certain temperature (usually 300℃ - 500℃) and keeping it for a period of time to eliminate internal stress in the copper wire, improve its flexibility and ductility, and facilitate the subsequent stranding process.

The stranding process is to strand multiple annealed copper wires together according to a certain stranding method and pitch to form a conductor with the required cross-sectional area. The stranding methods include regular stranding, bunch stranding, etc., and the appropriate stranding method is selected according to the cable specification and performance requirements. During the stranding process, it is necessary to ensure uniform tension of each strand of copper wire and stable stranding pitch to ensure that the conductor structure is tight, the conductivity is good, and at the same time, the flexibility and fatigue resistance of the conductor are enhanced.

Insulation layer extrusion is one of the key processes. The XLPE material is added to the extruder, heated and melted, and then evenly extruded and coated on the surface of the conductor through a die to form the insulation layer. During the extrusion process, it is necessary to strictly control the extrusion temperature, pressure, and speed to ensure that the thickness of the insulation layer is uniform, the surface is smooth, closely combined with the conductor, and free of bubbles, impurities, and other defects. The extruded Insulated Wire core needs to undergo cross-linking treatment. Common cross-linking methods include warm water cross-linking, steam cross-linking, and dry cross-linking. Dry cross-linking is a relatively advanced process at present. The XLPE material completes the cross-linking reaction in a high-temperature and high-pressure nitrogen environment, forming a three-dimensional network structure, which greatly improves the performance of the insulation layer.

After the extrusion of the insulation layer, a series of tests are carried out on the insulated wire core, such as insulation thickness measurement, voltage withstand test, partial discharge test, etc., to ensure that the quality of the insulation layer meets the requirements.

For Multi-Core cables, a cabling process is also required, in which multiple insulated wire cores are stranded together according to a certain stranding method to form a cable core. During the cabling process, a suitable filling material, such as polypropylene rope, is filled in the middle of the cable core to ensure the roundness and structural stability of the cable core. At the same time, a layer of non-woven fabric or film may be wrapped around the cable core to play a buffering and isolating role.

Sheath extrusion is the last key process. The PVC Frls material is added to the extruder, heated and melted, and then extruded and coated on the outside of the cable core to form the sheath. The parameter control during the extrusion process is similar to that of the insulation layer extrusion, ensuring that the thickness of the sheath is uniform, the surface is smooth, and closely combined with the cable core. After the sheath extrusion is completed, the cable needs to be cooled and shaped in a cooling water tank to ensure the dimensional stability of the sheath.

The finished cables after production also need to undergo final finished product inspection, including structural size inspection, mechanical performance test, electrical performance test, flame retardant performance test, etc. Only cables that pass all inspection items can be packaged and stored in the warehouse for sale.

The packaging design of Cu XLPE PVC Frls Cable 400mm², 300mm², 240mm² power cables aims to protect the product, facilitate transportation and storage, while taking into account clear identification and environmental protection requirements.

For long-length cables, cable reels are usually used for packaging. There are two types of cable reels: wooden cable reels and steel cable reels. The appropriate cable reel is selected according to the weight of the cable and the transportation method. Wooden cable reels have lower cost and lighter weight, but their bearing capacity is relatively weak, suitable for lighter cables and short-distance transportation; steel cable reels have high strength, strong bearing capacity, and good impact resistance, suitable for heavier cables and long-distance transportation and multiple turnover uses.

The size of the cable reel is determined according to the length and outer diameter of the cable to ensure that the cable can be neatly wound on the cable reel, avoiding looseness, distortion, extrusion, etc. When winding the cable, the winding tension should be controlled to make the cable arranged closely, reducing shaking and friction during transportation and storage.

Baffles are installed on both sides of the cable reel, and the height of the baffles is higher than the outer diameter of the cable to prevent the cable from sliding off the cable reel. Clear product identification is printed on the baffles, including product model, specification, length, rated voltage, manufacturer, implementation standard, gross weight, net weight, etc., which is convenient for users to identify and check the product. At the same time, some precautions for transportation and storage are also marked on the baffles, such as "Do not invert", "Handle with care", "Sun protection and moisture proof", etc.

To protect the cable from moisture and dust, after the cable is wound, a layer of plastic film is wrapped on the surface of the cable, especially at the edges and interfaces of the cable reel, which should be wrapped tightly. For exported cables, vacuum packaging or waterproof cloth wrapping may also be used to adapt to harsh transportation environments such as long-distance ocean shipping.

For short-length cables or samples, wooden boxes or pallets may be used for packaging. Wooden boxes are made of solid wood, with moisture-proof materials padded inside. After the cables are neatly placed in the wooden boxes, they are fixed with partitions or foam to prevent the cables from shaking and colliding during transportation. Pallet packaging fixes the cables on the pallet and 捆扎 s them firmly with strapping, facilitating forklift handling.

The selection of packaging materials focuses on environmental protection, giving priority to recyclable and degradable materials. For example, wooden cable reels can be recycled, and plastic films are made of environmentally friendly materials, reducing environmental pollution.

The transportation of Cu XLPE PVC Frls Cable 400mm², 300mm², 240mm² power cables must strictly comply with relevant transportation regulations and operating procedures to ensure the safety and integrity of the cables during transportation.

The choice of transportation method depends on the transportation distance, quantity, and customer needs, including road transportation, railway transportation, waterway transportation, and air transportation. Road transportation is highly flexible and can realize door-to-door transportation, suitable for short-to-medium distance transportation and small batches of cables. Railway transportation has a large capacity, relatively low cost, and good stability, suitable for long-distance transportation and large batches of cables. Waterway transportation has low cost and large capacity, suitable for long-distance transportation across countries or regions, but the transportation time is relatively long. Air transportation is fast, suitable for emergency transportation of small batches of cables, but the cost is high.

Before transportation, the packaging of the cables must be carefully inspected to ensure that the cable reels are firm, the cables are tightly wound, and the marks are clear. For wooden cable reels, check whether their strength is sufficient and whether the baffles are firm. For steel cable reels, check whether the welding joints are firm and whether the rotation is flexible.

During transportation, effective fixing measures must be taken to prevent the cable reels from sliding, rolling, or colliding on the transport vehicle. During road transportation, place the cable reels in the flat compartment of the truck, and fix the cable reels to the firm parts of the compartment with steel wire ropes or chains. The fixing points should be evenly distributed to ensure balanced stress. During railway and waterway transportation, load and fix according to the regulations of the transportation department to avoid collision between cable reels.

During transportation, attention should be paid to protecting the cables from extreme weather. In high-temperature weather, avoid long-term exposure of the cables to sunlight. Sunshade measures can be taken to prevent the cable sheath and insulation layer from aging and deformation due to high temperature. In low-temperature weather, pay attention to antifreeze to avoid the cables becoming brittle due to low temperature, which affects their flexibility. In case of rain and snow, ensure that the rainproof facilities of the transport vehicle are in good condition to prevent the cables from getting damp.

During transportation, avoid severe impact and vibration on the cables. The transport vehicle should drive smoothly, avoiding sudden braking and sharp turns. When loading and unloading cables, use appropriate lifting equipment, such as cranes and forklifts, and strictly prohibit rough loading and unloading. When lifting, select the special lifting points on the cable reel to ensure uniform stress and avoid damage to the cable reel and cables.

Transportation personnel should be familiar with the characteristics and transportation requirements of the cables, and regularly check the condition of the cables during transportation, and deal with problems in a timely manner. After arriving at the destination, jointly check the packaging and appearance of the cables with the receiver, and go through the handover procedures after confirmation.

The delivery process of Cu XLPE PVC Frls Cable 400mm², 300mm², 240mm² power cables is rigorous and standardized, aiming to ensure that the products are delivered to customers accurately and on time to meet customer needs.

Before delivery, sales personnel will make final confirmation with customers, verify order information, including product model, specification, quantity, delivery address, contact information, delivery time, etc., to ensure all information is accurate. At the same time, warehouse managers retrieve the corresponding cables from the warehouse according to the order information, and inspect the packaging, marks, and appearance of the cables to ensure that the product quality is intact and meets the order requirements.

For cables that need to be cut into specific lengths, warehouse personnel will use special cutting equipment for precise cutting, and seal the cut to prevent moisture and impurities from entering the cable. The cut cables should be marked with the length and corresponding order information.

When delivering goods, detailed delivery documents will be generated, including delivery notes, packing lists, invoices, product qualification certificates, inspection reports, etc. These documents will be sent together with the goods to facilitate customers to check and accept when receiving the goods. The delivery note clearly indicates the product information, quantity, and delivery date; the packing list details the specifications and quantities of the goods in each package; the invoice is the proof of the transaction between the two parties; the product qualification certificate and inspection report prove that the product meets the relevant standards and quality requirements.

For urgent orders, priority will be given to delivery to ensure that the goods are delivered within the time required by the customer. The warehouse will arrange personnel to process urgent orders first, and coordinate with the transportation department to choose the fastest transportation method. During the delivery process, if there is a delay in transportation due to force majeure, the sales personnel will promptly communicate with the customer, explain the situation, and negotiate a solution to obtain the customer's understanding and support.

After the goods are delivered, the delivery information will be recorded in a timely manner, including the delivery date, transportation method, waybill number, etc., and the information will be fed back to the customer so that the customer can track the logistics information. At the same time, the warehouse will update the inventory in a timely manner to ensure the accuracy of inventory data.

To enable customers to fully understand the performance and quality of Cu XLPE PVC Frls Cable 400mm², 300mm², 240mm² power cables before mass purchase, the manufacturer provides sample services to help customers make purchase decisions.

Customers can apply for samples through various channels such as phone calls, emails, and online platforms. When applying, they need to provide basic information such as company name, contact person, contact information, and the model and specification of the required samples. The manufacturer will review the sample application, and after confirmation, arrange the preparation of samples.

The sample preparation process is consistent with the production process of formal products to ensure that the samples can truly reflect the quality and performance of the products. The length of the sample is usually 5-10 meters, which is sufficient for customers to conduct performance tests and evaluations, such as insulation performance testing, flame retardant performance testing, and mechanical performance testing.

Samples can be provided to customers in various ways. For domestic customers, samples can be sent by express delivery. The manufacturer will choose a well-known express company with reliable service to ensure that the samples are delivered to customers in good condition within the specified time. For customers near the manufacturer, they can also pick up samples on site, which allows customers to visit the production workshop and understand the production process and quality control system.

When sending samples, the manufacturer will attach a sample description, which includes product parameters, performance indicators, usage methods, and applicable scenarios, to help customers better understand the samples. If customers have special testing requirements, the manufacturer can provide relevant testing reports according to the actual situation.

The sample service is usually free of charge for the sample itself, but the transportation cost of the sample may need to be borne by the customer. This is to avoid the waste of resources caused by random application for samples. For long-term cooperative customers or customers with large purchase intentions, the manufacturer may also bear the transportation cost of samples.

After receiving the samples, if customers have any questions or suggestions, they can contact the manufacturer's technical personnel, who will provide professional answers and technical support. If the sample does not meet the customer's expectations, the manufacturer will communicate with the customer in a timely manner to understand the specific requirements and provide solutions.

The manufacturer attaches great importance to after-sales service and has established a complete after-sales service system to provide customers with comprehensive support for Cu XLPE PVC Frls Cable 400mm², 300mm², 240mm² power cables, ensuring that customers have no worries during use.

Warranty service is an important part of after-sales service. The product has a warranty period of 12-24 months from the date of delivery, depending on the product model and usage scenario. During the warranty period, if the cable has quality problems due to manufacturing defects or material problems, the manufacturer will provide free repair or replacement services. Customers only need to provide the purchase invoice and a description of the problem, and the manufacturer will arrange technical personnel to confirm the problem and handle it within the specified time.

Technical support is also an important part of after-sales service. The manufacturer has a professional technical team with rich experience, which can provide customers with technical consultation and guidance at any time. Customers can consult technical personnel through phone calls, emails, online customer service, etc., regarding issues such as cable selection, installation, laying, maintenance, and troubleshooting. For complex technical problems, the manufacturer can also send technical personnel to the site for guidance and solution.

In terms of maintenance and repair, if the cable is damaged due to improper use or man-made factors beyond the warranty period, the manufacturer can provide paid maintenance services. The technical personnel will evaluate the damage of the cable and formulate a reasonable maintenance plan. After obtaining the customer's consent, they will carry out maintenance work to restore the function of the cable as much as possible.

The manufacturer will conduct regular return visits to customers to understand the use of the product and customer needs. Through return visits, collect customers' opinions and suggestions on product quality and service, and continuously improve product performance and service level. For customers' complaints, the manufacturer will handle them in a timely manner, and establish a complaint handling mechanism to ensure that each complaint is properly resolved.

In addition, the manufacturer will provide customers with relevant technical materials, such as product manuals, installation guides, and maintenance manuals, which are detailed and easy to understand, covering all aspects of product use and maintenance, to help customers use and maintain the cables correctly.

The manufacturer adheres to the principle of customer first, and is committed to providing customers with high-quality products and satisfactory after-sales service, establishing long-term and stable cooperative relations with customers.